CN108246364A - A kind of preparation method for aoxidizing Ag doping crystalline state polyimides compounded visible light photocatalyst - Google Patents
A kind of preparation method for aoxidizing Ag doping crystalline state polyimides compounded visible light photocatalyst Download PDFInfo
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- CN108246364A CN108246364A CN201810179906.2A CN201810179906A CN108246364A CN 108246364 A CN108246364 A CN 108246364A CN 201810179906 A CN201810179906 A CN 201810179906A CN 108246364 A CN108246364 A CN 108246364A
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- state polyimides
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- 239000004642 Polyimide Substances 0.000 title claims abstract description 59
- 229920001721 polyimide Polymers 0.000 title claims abstract description 59
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910001923 silver oxide Inorganic materials 0.000 claims abstract description 11
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 35
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 34
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 18
- 239000002131 composite material Substances 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 229910000108 silver(I,III) oxide Inorganic materials 0.000 claims description 3
- 239000003643 water by type Substances 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 238000002604 ultrasonography Methods 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 abstract description 16
- 238000007254 oxidation reaction Methods 0.000 abstract description 16
- 230000001699 photocatalysis Effects 0.000 abstract description 10
- 238000007146 photocatalysis Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000004065 semiconductor Substances 0.000 description 8
- 235000011121 sodium hydroxide Nutrition 0.000 description 7
- 239000003054 catalyst Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 3
- 229940043267 rhodamine b Drugs 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000006862 quantum yield reaction Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910000161 silver phosphate Inorganic materials 0.000 description 1
- VFWRGKJLLYDFBY-UHFFFAOYSA-N silver;hydrate Chemical compound O.[Ag].[Ag] VFWRGKJLLYDFBY-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
-
- B01J35/39—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
- B01J37/031—Precipitation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
The present invention relates to a kind of preparation for aoxidizing Ag doping crystalline state polyimides compounded visible light photocatalyst, including step：The preparation of crystalline state polyimides, the preparation of silver oxide and the preparation for aoxidizing Ag doping crystalline state polyimides compounded visible light photocatalyst.The beneficial effects of the invention are as follows：The preparation method is relatively simple, and preparation condition is easy to control, and prepared oxidation Ag doping crystalline state polyimides compounded visible light photocatalyst has many advantages, such as non-secondary pollution, and photocatalysis efficiency is high, has certain application value.
Description
Technical field
The invention belongs to nano material preparation and applied technical fields, are related to a kind of oxidation Ag doping crystalline state polyimides and answer
Close the preparation method of visible-light photocatalyst.
Background technology
Photocatalysis technology is curbed environmental pollution and one of the technology of most critical of energy shortage problem with gradually becoming, and
The extensive research of domestic and international scientist is caused.Crystalline state polyimides (PI) responds nonmetallic poly- as a kind of novel visible
Close object light catalyst, and have many advantages, such as nontoxic, non-secondary pollution, it is of low cost, be easy to industrialize.With going deep into for research,
Graphite phase carbon nitride has been widely used in the research fields such as photocatalytic degradation, photocatalysis hydrogen production, and obtains a series of great
It breaks through.But research shows that crystalline state polyimides but there are some shortcomings, such as specific surface area is small, quantum efficiency is low, photoproduction is electric
The shortcomings of son and hole higher to recombination rate.Therefore, find certain methods to crystalline state polyimide modified raising photocatalysis performance
Research hotspot is become.Common method of modifying includes nonmetal doping, noble metal loading, semiconductors coupling, dye sensitization etc..
Wherein, semiconductors coupling is that the semiconductor progress of two or more different energy band is mutually compound.After semiconductors coupling,
Light induced electron and hole are flowed into from a semiconductor energy level in another semiconductor energy level, and Pair production is promoted to detach, and are expanded
Spectral response range so as to further improve the quantum yield of photochemical catalyst, and then improves photocatalysis efficiency.Therefore, it seeks
Look for that a kind of novel there is visible light-responded semiconductor to be carried out compound with crystalline state polyimides is very significant.
In recent years the study found that AgX (X=Cl, Br and I), Ag3PO4And Ag3VO4Silver-containing materials is waited to utilize visible ray
Photochemical catalytic oxidation organic pollution and photo catalytic reduction etc. have excellent performance.Wherein, silver oxide (Ag2O) conduct
A kind of typical silver-colored series photocatalyst, has many advantages, such as that hypotoxicity, stability height, Yi Ji electricity, magnetic, catalysis characteristics are good, causes
The extensive research of researcher.Research is found：Silver oxide has relatively narrow band gap (1.2eV), there is good light in visible light region
Response, it is higher to the utilization rate of solar energy, it is a kind of defect semiconductor material and a kind of good visible light catalyst.
But the shortcomings such as it is high there are manufacturing cost, and photocatalysis efficiency is low.If itself and PI are compounded to form p-n junction heterojunction photocatalyst,
The optical Response of PI can be not only widened, improves its photocatalysis efficiency, Ag can also be saved2The usage amount of O reduce catalyst into
This.Therefore, it is very significant to research and develop this novel composite photo-catalyst.
Invention content
The technical problem to be solved by the present invention is to：Based on the above problem, the present invention provides a kind of oxidation Ag doping crystalline state and gathers
The preparation method of acid imide composite photo-catalyst.
A technical solution is used by the present invention solves its technical problem：A kind of oxidation Ag doping crystalline state polyimides
The preparation method of compounded visible light photocatalyst, includes the following steps：
(1) preparation of crystalline state polyimides
By a certain amount of ultrapas and pyromellitic acid anhydride (molar ratio 1：1) grinding is uniform, by ground production
Product are put into crucible, are heated to 325 DEG C, are heated 4h, are washed after cooled to room temperature grinding with 50 DEG C of warm water, obtain product
Crystalline state polyimides.
(2) silver oxide (Ag2O preparation)
By a certain amount of silver nitrate and sodium hydroxide (molar ratio 1：1) it is dissolved separately in deionized water, stirs
Then the sodium hydroxide solution of a concentration of 0.05mol/L is added dropwise in clear silver nitrate solution by 30min, until molten
Until the pH=10 of liquid, 30min is stirred under dark condition, obtains the silver oxide precipitates of black.
(3) preparation of Ag doping crystalline state polyimides composite photo-catalyst is aoxidized
The crystalline state polyimides of certain mass prepared in step (1) is added in beaker, adds in 40ml deionized waters, is surpassed
Suspension is formed after sound 30min.By the silver nitrate of certain mass, (molar ratio of silver nitrate and polyimides is 2：1) it adds in above-mentioned
In the suspension of the polyimides containing crystalline state, 30min is stirred under dark condition, finally by the hydroxide of a concentration of 0.05mol/L
Sodium solution is added dropwise in the suspension containing silver nitrate and crystalline state polyimides, until the pH=10 of solution, in dark
Under the conditions of continue stir 30min after, centrifugal filtration it is dry oxidation Ag doping crystalline state polyimides composite photo-catalyst.
Further, the molar ratio of ultrapas and pyromellitic acid anhydride is 1 in the step (1):1；
Further, the molar ratio of silver nitrate and sodium hydroxide is 1 in the step (2):1；
Further, the molar ratio of silver nitrate and polyimides is 2 in the step (3):1；
Further, concentration of sodium hydroxide solution is 0.05mol/L in the step (2) and (3).
The beneficial effects of the invention are as follows：The preparation method is relatively simple, and preparation condition is easy to control, prepared silver oxide
Doping crystalline state polyimides compounded visible light photocatalyst has many advantages, such as pollution-free, high catalytic efficiency, has certain application
Value.
Description of the drawings
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is the X ray of oxidation Ag doping crystalline state polyimides composite photo-catalyst that the embodiment of the present invention 1 is prepared
Diffraction pattern；
Fig. 2 is the infrared of the oxidation Ag doping crystalline state polyimides composite photo-catalyst that the embodiment of the present invention 1 is prepared
Spectrogram；
Fig. 3 is oxidation Ag doping crystalline state polyimides composite photocatalyst for degrading sieve that the embodiment of the present invention 1 is prepared
The activity figure of red bright B.
Specific embodiment
Presently in connection with specific embodiment, the invention will be further described, following embodiment be intended to illustrate invention rather than
Limitation of the invention further.
Embodiment
(1) preparation of crystalline state polyimides
1.26g ultrapas (0.01mol) and 2.18g pyromellitic acid anhydrides (0.01mol) grinding is uniform, it will grind
Good product is put into crucible, is heated to 325 DEG C, is heated 4h, is washed, obtained with 50 DEG C of warm water after cooled to room temperature grinding
To product crystalline state polyimides.
(2) silver oxide (Ag2O preparation)
0.51g silver nitrates (0.003mol) and 0.12g sodium hydroxides (0.003mol) are dissolved separately in 40ml ions
In water, 30min is stirred, then transparent clear sodium hydroxide solution is added dropwise in clear silver nitrate solution, until
Until the pH=10 of solution, 30min is stirred under dark condition, obtains the silver oxide precipitates of black.
(3) preparation of Ag doping crystalline state polyimides composite photo-catalyst is aoxidized
The 0.174g crystalline state polyimides prepared in step (1) is added in beaker, adds in 40ml deionized waters, ultrasound
Suspension is formed after 30min.The silver nitrate of 0.51g is added in the suspension of the above-mentioned polyimides containing crystalline state, in dark condition
The sodium hydroxide solution of a concentration of 0.05mol/ is finally added dropwise to sub- containing silver nitrate and crystalline state polyamides by lower stirring 30min
In the suspension of amine, until the pH=10 of solution, continue under dark condition after stirring 30min, centrifugal filtration is dry
Aoxidize Ag doping crystalline state polyimides compounded visible light photocatalyst.
The crystal phase structure of oxidation Ag doping crystalline state polyimides compounded visible light photocatalyst prepared by embodiment is by day
This Neo-Confucianism D/max2500PC rotations x-ray diffractometer is analyzed, wherein, X ray is Cu target K αVoltage
40kV, electric current 100mA, step-length are 0.02 °, 10 °~80 ° of scanning range.X ray diffracting spectrum as shown in Figure 1, as seen from the figure,
The XRD diffraction of oxidation Ag doping crystalline state polyimides compounded visible light photocatalyst can be seen in the figure at 33.0 °, 38.3 °,
55.2 °, 65.7 ° and 69.0 ° there is the characteristic diffraction peak of silver oxide, but do not see the peak of apparent crystalline state polyimides.
The infrared spectrogram of oxidation Ag doping crystalline state polyimides compounded visible light photocatalyst prepared by embodiment is such as
Shown in Fig. 2, as seen from the figure, aoxidize in the infrared figure of Ag doping crystalline state polyimides composite photo-catalyst it can be seen that 600cm-1Go out
The vibration peak of existing silver oxide, 1725cm-1And 1376cm-1There is the vibration peak of crystalline state polyimides, illustrate to aoxidize Ag doping crystalline state
Polyimides is successfully prepared.
Application examples：
The oxidation Ag doping crystalline state polyimides composite photocatalyst for degrading rhodamine B solution that will be prepared in embodiment,
Middle rhodamine B solution concentration is 10mg/L, takes oxidation Ag doping crystalline state polyimides composite photo-catalyst 20mg, first dark reaction
30min makes solution reach adsorption-desorption balance, then carries out visible light catalytic reaction, using with the 500W with 420nm optical filters
Xenon lamp after illumination, extracts 3ml reaction solutions in centrifuge tube with dropper at regular intervals as light source, dark reaction time 60min
In, be put into supercentrifuge centrifuge 5min after, after with ultraviolet-visible spectrophotometer measure photocatalysis effect.
Degradation property such as Fig. 3 of oxidation Ag doping crystalline state polyimides compounded visible light photocatalyst prepared by embodiment
It is shown.As seen from Figure 3, in 120 minutes rhodamine B degradation rate to reach 98%, it is seen that prepared oxidation Ag doping crystalline state
Polyimides composite photo-catalyst has higher photocatalytic activity.
Using embodiments of the invention described above as enlightenment, by above-mentioned description, relevant staff completely can be
In the range of this invention technological thought, various changes and amendments are carried out.The technical scope of this invention is simultaneously
The content being not limited on specification, it is necessary to which its technical scope is determined according to right.
Claims (5)
1. a kind of preparation method for aoxidizing Ag doping crystalline state polyimides compounded visible light photocatalyst, which is characterized in that including
Following steps：
(1) preparation of crystalline state polyimides
By a certain amount of ultrapas and pyromellitic acid anhydride (molar ratio 1：1) grinding is uniform, and ground product is put
Enter in crucible, be heated to 325 DEG C, heat 4h, washed after cooled to room temperature grinding with 50 DEG C of warm water, obtain product crystalline state
Polyimides.
(2) silver oxide (Ag2O preparation)
By a certain amount of silver nitrate and sodium hydroxide (molar ratio 1：1) it is dissolved separately in deionized water, stirs 30min, so
The sodium hydroxide solution of a concentration of 0.05mol/L is added dropwise in clear silver nitrate solution afterwards, until the pH=of solution
Until 10,30min is stirred under dark condition, obtains the silver oxide precipitates of black.
(3) preparation of Ag doping crystalline state polyimides composite photo-catalyst is aoxidized
The crystalline state polyimides of certain mass prepared in step (1) is added in beaker, adds in 40ml deionized waters, ultrasound
Suspension is formed after 30min.By the silver nitrate of certain mass, (molar ratio of silver nitrate and polyimides is 2：1) above-mentioned contain is added in
In the suspension of crystalline state polyimides, 30min is stirred under dark condition, finally by the sodium hydroxide of a concentration of 0.05mol/L
Solution is added dropwise in the suspension containing silver nitrate and crystalline state polyimides, until the pH=10 of solution, in dark item
Continue under part after stirring 30min, centrifugal filtration is so dry that aoxidize Ag doping crystalline state polyimides composite photo-catalyst.
2. a kind of preparation side for aoxidizing Ag doping crystalline state polyimides compounded visible light photocatalyst according to claim 1
Method, it is characterized in that：The molar ratio of ultrapas and pyromellitic acid anhydride is 1 in the step (1):1.
3. a kind of preparation side for aoxidizing Ag doping crystalline state polyimides compounded visible light photocatalyst according to claim 1
Method, it is characterized in that：The molar ratio of silver nitrate and sodium hydroxide is 1 in the step (2):1.
4. a kind of preparation side for aoxidizing Ag doping crystalline state polyimides compounded visible light photocatalyst according to claim 1
Method, it is characterized in that：The molar ratio of silver nitrate and polyimides is 2 in the step (3):1.
5. a kind of preparation side for aoxidizing Ag doping crystalline state polyimides compounded visible light photocatalyst according to claim 1
Method, it is characterized in that：Concentration of sodium hydroxide solution is 0.05mol/L in the step (2) and (3).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113649077A (en) * | 2021-08-02 | 2021-11-16 | 青海大学 | Tin sulfide/sulfur-doped polyimide as composite photocatalytic material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744059A (en) * | 2012-07-16 | 2012-10-24 | 黑龙江大学 | Preparation method of ordered mesoporous titania/silver photocatalyst |
| CN104277219A (en) * | 2014-10-11 | 2015-01-14 | 南京大学 | Photocatalytic material polyimide, as well as preparation method and applications thereof |
| CN105688899A (en) * | 2016-03-22 | 2016-06-22 | 江苏大学 | Preparation method and application for ternary composite photocatalyst |
| CN105709831A (en) * | 2016-01-27 | 2016-06-29 | 华南师范大学 | Silver phosphate and conjugated polymer visible light composite photocatalyst |
| CN106423118A (en) * | 2016-11-08 | 2017-02-22 | 嘉善君圆新材料科技有限公司 | Photocatalytic composite material and preparation method thereof |
-
2018
- 2018-03-05 CN CN201810179906.2A patent/CN108246364B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744059A (en) * | 2012-07-16 | 2012-10-24 | 黑龙江大学 | Preparation method of ordered mesoporous titania/silver photocatalyst |
| CN104277219A (en) * | 2014-10-11 | 2015-01-14 | 南京大学 | Photocatalytic material polyimide, as well as preparation method and applications thereof |
| CN105709831A (en) * | 2016-01-27 | 2016-06-29 | 华南师范大学 | Silver phosphate and conjugated polymer visible light composite photocatalyst |
| CN105688899A (en) * | 2016-03-22 | 2016-06-22 | 江苏大学 | Preparation method and application for ternary composite photocatalyst |
| CN106423118A (en) * | 2016-11-08 | 2017-02-22 | 嘉善君圆新材料科技有限公司 | Photocatalytic composite material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113649077A (en) * | 2021-08-02 | 2021-11-16 | 青海大学 | Tin sulfide/sulfur-doped polyimide as composite photocatalytic material and preparation method thereof |
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